食品科学 ›› 2006, Vol. 27 ›› Issue (12): 241-245.

• 基础研究 • 上一篇    下一篇

玉米微孔淀粉的制备及显微结构研究

顾香玉,张晓云,刘景顺   

  1. 江苏科技大学南徐学院; 华东理工大学生物反应器工程国家重点实验室; 河南工业大学粮油食品学院
  • 出版日期:2006-12-15 发布日期:2011-11-23

Preparation of Corn Microporous Starch and Its Microstructure Study

GU Xiang-yu1,ZHANG Xiao-yun2,LIU Jing-shun3   

  1. 1.Nanxu College, Jiangsu University of Science and Technology, Zhenjiang 212004, China;2.State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China;3.Grain College, Henan University of Technology, Zhengzhou 450052, China
  • Online:2006-12-15 Published:2011-11-23

摘要: 以玉米淀粉为原料,研究比较了酶法及酸法水解处理玉米淀粉制备微孔淀粉工艺,并借助于扫描电子显微镜(scanningelectronmicroscopes,SEM)、差式扫描量热计(differentialscanningcalorimeter,DSC)、动态热机械分析(dynamicmechanicalanalysis,DMA)等分析手段对产品的显微结构及热相变过程进行了分析。

关键词: 微孔淀粉, 酶解, 酸解, DSC, SEM, DMA

Abstract: Microporous starch granules were prepared by the partial hydrolysis of native corn starch with α-amylase and HCl. By observing the DSC pictures of microporous starch granules modified by α-amylase and HCl, pores in the native corn starch granules hydrolyzed by α-amylase appeared much better than those modified by HCl alone. The temperature of phase transition and surface structure of microporous starch granules were also studied with the aid of DSC, SEM and DMA analysis.

Key words: microporous starch; &alpha, -amylase hydrolysis; acid hydrolysis; DSC(differential scamning calorimeter); SEM(scanning electron microscopes); DMA(dynamic mechanical analysis);